You divide people up into two even teams. One beer can for every person is placed unopen at least 20 yards away.

On the count of something, the first person on each team runs down to the cans, opens one, and chugs it. They then place the can on the ground, and while still holding the can, spin around it ten times. They then run back to the start and the next person on the team goes. First team to have everyone finish wins.

You may add rules and penalties about falling, fighting, not finishing, etc.